Synonyms
(E)-5-(2-carbamoylhydrazineylidene)-6-hydroxy-1-methyl-2,3,5,6-tetrahydro-1H-indole-2,4-disulfonic acid--(Z)-5-(2-carbamoylhydrazineylidene)-6-hydroxy-1-methyl-2,3,5,6-tetrahydro-1H-indole-2,7-disulfonic acid--5-(2-carbamoyl-1-sulfohydrazineyl)-1-methyl-6-oxo-2,3,5,6-tetrahydro-1H-indole-2-sulfonic acid (1/1/1)